The fan is controlled by a room light switch. It is not included in the delivery package.

The fan is controlled by the built-in pull cord switch V. Not applied in case of ceiling mounting.

Speed control is possible through a thyristor speed controller (see Electrical Accessories). Several fans may connected to the same controller. Speed controllers can not be connected to the fans with T, TH, TP, VT, VTH modification.

Automatic:

By the electronic control unit BU-1-60 (see Electrical Accessories). The control unit is supplied separately.

By the timer T (the built-in run-out timer enables the fan operation within 2 to 30 minutes after the fan switching off).

By the humidity sensor and timer TH (if the humidity level in the room exceeds the sensor threshold adjustable value within 60-90% the fan switches automatically on and operates until the humidity level drops to the standard level, after that the fan continues operating within the time period according to the timer setting, then shuts down).

MOUNTING FEATURES

The fan is mounted directly into the ventilation shaft.

Flexible duct application is recommended in case of remote location of the ventilation shaft. The air duct is connected to the fan exhaust flange through a clamp.

Wiring diagram for the fans equipped with a timer / timer, humidity sensor and a built-in switch

Wiring diagram for the fans equipped with a timer / timer with a humidity sensor without built-in switch

Wiring diagram for the fans with a light lamp. Separate activation of the fan and the built-in lamp.

Wiring diagram for the fans with a light lamp. Parallel activation of the fan and the built-in lamp.

Wiring diagram for the fans with an light lamp and grounding. Separate activation of the fan and the built-in lamp.

Wiring diagram for the fans with a light lamp and grounding. Parallel switching of the fan and the built-in lamp.

Wiring diagram for the fans with grounding

* - only for fans designed for 12 V rated voltage (specified on the fan casing and packing).S, S1, S2 - external switches.

Operating logic of the fans with optional equipment

The fan equipped with a timer is activated by the control voltage supplied to LT input. After the control voltage is disconnected the fan continues operating within the time period within 2 to 30 minutes according to the timer settings. The turn-off delay time is adjusted by turning the respective potentiometer T control knob clockwise to increase and counter-clockwise to reduce it.

The fan equipped with a timer and humidity sensor is activated by the control voltage supplied to LT input or in case of exceeding the preset humidity threshold value adjustable from ~60% to ~90%. After the control voltage is disconnected or as the humidity level H drops below the set threshold the fan continues operating within the time period within 2 to 30 minutes according to the timer settings. The turn-off delay time and the threshold humidity level are adjusted by turning the control knob of the respective potentiometer T for timer and H for humidity sensor clockwise to increase and counter-clockwise to reduce the set value. To set the maximum humidity level (90%) set the potentiometer control knob for H max position.

The fan equipped with a timer and motion sensor is activated in case of the moving detection at the distance from 1 m to 4 m with 100° detection angle. After motion is off the fan continues operating within the time period within 2 to 30 minutes according to the timer settings. The turn-off delay time is adjusted by turning the respective potentiometer T control knob clockwise to increase and counter-clockwise to reduce it.

Wiring diagram for connection of the light lamp to the fan timer operated by the common switch is shown on diagram 4. Upon the light lamp disconnection the fan continues operating according to the timer setting within the set time period.

Legend

Legend

Picture symbol

Designation

Modification description

Silenta-S K

Fan is equipped with a backdraft damper for back flow preventing.

Silenta-S L

The motor is equipped with ball bearings for long service life (appr. 40 thousand hours) and fan mounting at any angle. The bearings are maintenance-free and contain enough grease for the entire operating period.

Silenta-ST

Equipped with a regulated timer with the operating time from 2 to 30 minutes.

Silenta-STH

Equipped with a timer with the operating time from 2 to 30 minutes and a humidity sensor with the threshold value from 60 to 90%.

Silents-SV

Equipped with a pull cord switch.

Silenta-SVТ

Equipped with a pull cord switch and a regulated timer with the operating time adjustable from 2 to 30 minutes.

Silenta-SVТН

Equipped with a pull cord switch, regulated timer with the operating time adjustable from 2 to 30 minutes and a humidity sensor with the operating threshold range from 60% to 90%.